DescriptionSLQGL series submersible crossflow pump is combined with the technology of submersible motor and crossflow pump&comma; which keeps the advantages of crossflow pump and also uses the technology of submersible motor&comma; overcoming the problems of cooling&comma; heat dissipation&comma; packing of traditional crossflow pump&period; It is much more excellent than traditional machine&period;The pump is applicable for condition that is large capacity and low head&period; It is used to transport clean water without solid particles and other liquids with physical and chemical properties similar to clean water&period; The temperature of transported liquid can not exceed 40º C&period;

Application AreaThe pump can be used in agricultural irrigation&comma; industry&mining&comma; dock&comma; urban construction and water-supply&drainage of power plant&comma; and it is especially applicable in urban flood control project&comma; sewage project and drainage project&comma; &lpar;Special requirements can be designed&rpar;&comma; and it is widely used&period;

Structural Characteristics1&comma; ImpellerImpeller is based on the most advanced hydraulic model with good&comma; steady&comma; mature performance&period; Much lower nD value is chosen with better anti-cavitation to make sure stead operation&period;2&comma; Shaft sealTwo sets of separate mechanical seals are used to ensure the safety and reliability of sealing&period;3&comma; Monitoring deviceSubmersible crossflow pump has several protection devices which lead the leading wire to electric control cabinet&comma; and the protection devices are&colon; Stator temperature protection&comma; protection of bearing temperature rise&comma; protection of motor water inlet&comma; protection of oil cavity temperature rise&period;4&comma; Pump&sol;motor shaftPump and motor are concentric with compact structure&comma; and the shaft extension is shortened as much as possible&comma; and the rigidity is improved&period; Deflection is controlled within the allowable range based on the design&comma; and the vibration is lower when operating&period; Service life of sealing and bearing is much longer&period;5&comma; Flow passageCFD and experimental method are combined to confirm the flow line shape to ensure high efficiency when operating&period;6&comma; CoolingMotor casing passes the heat into the surrounding medium&comma; and the heat is taken away by the surrounding water&period; High power high voltage motor uses inner air passage heat dissipation technology&comma; which makes three-phase winding temperature rise lower with an even temperature field distribution&period;7&comma; MotorHigh performance squirrel cage induction motor is specially designed for submersible pump according to GB&sol;T755 standard&period; Thermal classification is F&comma; and 380V&comma; 660V&comma; 6KV&comma; 10KV etc&period; Voltage classes are used&period; Two VPI insulation processes are used to ensure the reliable insulation of motor&period;8&comma; BearingAs for horizontal structure&comma; large common structure finite element analysis software is used to analyze rotating components dynamically&comma; researching its deflection&comma; vibration&comma; inner stress&comma; support counter-force&comma; characteristic frequency&period; And the design of structure&comma; bearing arrangement&comma; bearing choosing are all based on this foundation&period; Rolling bearing is used to bear all the axial and radial loading&comma; totally separated from the transported medium&period;